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SN75ALS085DW PDF预览

SN75ALS085DW

更新时间： 2024-09-20 09:12:11
品牌 Logo 应用领域
德州仪器 - TI 线路驱动器或接收器驱动程序和接口接口集成电路光电二极管局域网
页数 文件大小 规格书
17页 242K
描述
LAN ACCESS UNIT INTERFACE DUAL DRIVER/RECEIVER

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SN75ALS085DW 技术参数

是否无铅：不含铅是否Rohs认证：符合
生命周期：Not Recommended零件包装代码：SOIC
包装说明：SOP,针数：24
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：5.62Is Samacsys：N
差分输出：YES驱动器位数：2
高电平输入电流最大值：0.001 A输入特性：DIFFERENTIAL
接口集成电路类型：LINE TRANSCEIVER接口标准：IEEE 802.3
JESD-30 代码：R-PDSO-G24JESD-609代码：e4
长度：15.4 mm湿度敏感等级：1
功能数量：2端子数量：24
最高工作温度：70 °C最低工作温度：
输出特性：TOTEM-POLE最大输出低电流：0.00016 A
输出极性：TRUE封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：260
认证状态：Not Qualified最大接收延迟：15 ns
接收器位数：2座面最大高度：2.65 mm
最大压摆率：225 mA最大供电电压：5.25 V
最小供电电压：4.75 V标称供电电压：5 V
电源电压1-最大：5.25 V电源电压1-分钟：4.75 V
电源电压1-Nom：5 V表面贴装：YES
技术：BIPOLAR温度等级：COMMERCIAL
端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED最大传输延迟：15 ns
宽度：7.5 mmBase Number Matches：1

SN75ALS085DW 数据手册

 浏览型号SN75ALS085DW的Datasheet PDF文件第2页浏览型号SN75ALS085DW的Datasheet PDF文件第3页浏览型号SN75ALS085DW的Datasheet PDF文件第4页浏览型号SN75ALS085DW的Datasheet PDF文件第5页浏览型号SN75ALS085DW的Datasheet PDF文件第6页浏览型号SN75ALS085DW的Datasheet PDF文件第7页 
SN75ALS085  
LAN ACCESS UNIT INTERFACE DUAL DRIVER/RECEIVER  
SLLS054B – APRIL 1989 – REVISED MAY 1995  
DW OR NT PACKAGE  
Meets or Exceeds the Requirements of IOS  
8802.3:1989 and ANSI/IEEE Std 802.3-1988  
(TOP VIEW)  
Interdevice Loop-Back Paths for System  
Testing  
TXI1  
TXEN1  
LOOP1  
GND  
TXO1  
TXO1  
1
24  
23  
22  
21  
20  
2
Squelch Function Implemented on the  
Receiver Inputs  
V
3
CC  
RXI1  
RXI1  
4
RXEN1  
RXO1  
RXO2  
RXEN2  
GND  
5
Drivers Will Drive a Balanced 78-Ω Load  
6
19 GND  
Transformer Coupling Not Required in  
System  
7
18  
17  
16  
15  
14  
13  
GND  
RXI2  
RXI2  
8
Power-Up/Power-Down Protection (Glitch  
Free)  
9
10  
11  
12  
LOOP2  
TXEN2  
TXI2  
V
CC  
Isolated Ground Pins for Reduced Noise  
Coupling  
TXO2  
TXO2  
Fault-Condition Protection Built into the  
Device  
Driver Inputs Are Level-Shifted ECL  
Compatible  
description  
The SN75ALS085 is a monolithic, high-speed, advanced low-power Schottky, dual-channel driver/receiver  
device designed for use in the AUI of ANSI/IEEE Std 802.3-1988. The two drivers on the device drive a 78-Ω  
balanced, terminated twisted-pair transmission line up to a maximum length of 50 meters. In the off (idle) state,  
the drivers maintain minimal differential output voltage on the twisted-pair line and, at the same time, remain  
within the required output common-mode range.  
With the driver enable (TXEN) high, upon receiving the first falling edge into the driver input, the differential  
outputs will rise to full-amplitude output levels within 25 ns. The output amplitude is maintained for the remainder  
of the packet. After the last positive packet edge is transmitted into the driver, the driver will maintain a minimum  
of 70% full differential output for a minimum of 200 ns, then decay to a minimum level for the reset (idle) condition  
within 8 µs. Disabling the driver by taking the driver enable low will also force the output into the idle condition  
after the normal 8-µs timeout. While operating, the drivers are able to withstand a set of fault conditions and not  
suffer damage due to the faults being applied. The drivers power up in the idle state to ensure that no activity  
is placed on the twisted-pair cable that could be interpreted as network traffic.  
The line receiver squelch function interfaces to a differential twisted-pair line terminated external to the device.  
The receiver squelch circuit allows differential receive signals to pass through as long as the input amplitude  
and pulse duration are greater than the minimum squelch threshold. This ensures a good signal-to-noise ratio  
while the data path is active and prevents system noise from causing false data transitions during line shutdown  
and line-idle conditions. The RXO outputs default to a high level and the RXEN outputs default to a low level  
while the squelch function is blocking the data path through the receiver (idle). The line receiver squelch will  
become active within 50 ns when the input squelch threshold is exceeded. RXEN will be driven high when the  
squelch circuit is allowing data to pass through the receiver. The receiver squelch circuit can also withstand a  
set of fault conditions while operating without causing permanent damage to the device.  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
Copyright 1995, Texas Instruments Incorporated  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...17

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SN75ALS085DW 替代型号

型号 品牌 替代类型 描述 数据表
SN75ALS085DWR TI

完全替代

 DUAL LINE TRANSCEIVER, PDSO24, GREEN, PLASTIC, SOIC-24
SN75ALS085DWRE4 TI

类似代替

 DUAL LINE TRANSCEIVER, PDSO24, GREEN, PLASTIC, SOIC-24

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SN75ALS085DWG4 TI

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 		LAN Access Unit Interface Dual Driver/Receiver 24-SOIC 0 to 70
SN75ALS085DWR TI

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SN75ALS085DWRE4 TI

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 		DUAL LINE TRANSCEIVER, PDSO24, GREEN, PLASTIC, SOIC-24
SN75ALS085DWRG4 TI

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 		DUAL LINE TRANSCEIVER, PDSO24, GREEN, PLASTIC, SOIC-24
SN75ALS085NT TI

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 		LAN ACCESS UNIT INTERFACE DUAL DRIVER/RECEIVER
SN75ALS085NT-00 TI

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 		DUAL LINE TRANSCEIVER, PDIP24
SN75ALS085NT-10 TI

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 		DUAL LINE TRANSCEIVER, PDIP24
SN75ALS1177 TI

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 		DUAL DIFFERENTIAL DRIVERS AND RECEIVERS
SN75ALS1177_06 TI

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 		DUAL DIFFERENTIAL DRIVERS AND RECEIVERS

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